How to connect an on-board computer to a VAZ 2114

Not so long ago, on Russian cars, all parameters were monitored by arrows on the instrument panel. Using the instruments, one could find out the speed, the presence of fuel in the tank, the temperature of the liquid in the cooling system, oil pressure, and charging. But all the data was quite approximate, and there were not so many parameters. Recently, many modern passenger cars have increasingly become equipped with more advanced control means, and there are more and more such devices. Nowadays, modern technology allows us to more accurately monitor the technical condition of a vehicle and timely identify any problems in it.

On-board computer

PURPOSE OF THE ON-BOARD COMPUTER

An on-board computer on a car is an electronic computer device designed to monitor the status of various components of the car and transmit information to the car owner. Depending on the technical equipment, on-board computers (BCs) can vary in complexity, and accordingly, the price of the device can vary significantly.

The VAZ 2114 car is equipped with BC 2114-3857010 as standard from the factory. The device is mounted on the panel to the right of the instrument cluster at the same level with it. On those VAZ models that are not equipped with such a device, there is a plug in the standard place on the instrument panel and there must be a 9-pin connector for connecting the device.

In the “native” BC 2114, you can view the following parameters on the display:

Current time and date;
Travel time excluding stops;
Travel time, including stops;
Gasoline consumption at the current time;
Average and total gasoline consumption per trip;
Mileage on the remaining gasoline in the tank;
Signal when there is a minimum amount of fuel left in the gas tank;
Total level of remaining fuel;
Travel distance;
Average speed during the trip;
Vehicle network voltage;
Signal when the mains voltage is below the permissible level.

The “Lux” package is equipped with an AMK-211501 on-board (or route) computer, which has added firmware that allows you to diagnose the electronic engine control system (ECM). But many owners of VAZ models 2113, 2114, 2115 are not satisfied with the standard equipment with its limited functionality, and they strive to install a more advanced BC with a larger set of controlled parameters. They can be understood - now there are many different models from different manufacturers.

The smallest BC State X-1M is made in the form of buttons.

BC State X-1M

It is mounted above the standard location of the trip computer instead of push-button plugs. Among the interesting additional functions of the device are:

“Plasmer” – warming up the spark plugs before starting the engine;
“Tropic” – the ability to change the temperature at which the fan turns on and thereby prevent engine overheating in hot weather.

In total, the device has 30 functions, and the BC costs about 1000 rubles. More expensive trip computers are installed in a standard place and are more functional. On the display of the Orion BK-46 model you can see up to 7 controlled parameters simultaneously, and when the battery is disconnected, all data is saved in memory in the device. The issue price is about 2500-2800 rubles.

One of the most advanced BC models for the VAZ 2114 is the “Gamma GF 415T”. Here you can see interesting features such as:

Displaying three multi-displays on the screen at once;
Non-volatile quartz watches;
Informing about the need to change oils, filters, spark plugs, etc.

There are a lot of controlled parameters, the cost of a bookmaker is in the range of 4000-4600 rubles. Many systems are equipped with audible alerts, and these computers are very easy to use.

ABOUT THE PRINCIPLES OF OPERATION OF SUCH SYSTEMS

Carburetor VAZ 2109 cars were equipped with devices with router functions. Installation of injection power plants VAZ 2114, VAZ 2115 and other models required the use of a completely different type of device. Most of its functional activities are devoted to diagnosing and controlling the operation of almost all devices and systems of vehicles.

The operation of the VAZ 2114 BC is based on and has the following operating principle:

Receiving signals from sensors through the control unit, processing them and issuing messages on the display, as well as the ability to make adjustments for other systems;
Processing signals from systems that are not controlled by the controller. In the event of an emergency, the corresponding icon is displayed on the information board, and a sound signal is also given.

CONNECTION

The connection diagram for the on-board computer on the VAZ 2114 is simple - it does not require special training or special qualifications. Therefore, you can connect the on-board computer to the VAZ 2114 with your own hands; detailed instructions are always attached to each device.

The connection principle is the same for all BCs, so let’s take a closer look at how to install an on-board computer on a VAZ 2114:

De-energize the car (disconnect the battery terminals).
We remove the standard plug from the instrument panel.
We find the 9-pin connector.
Remove the plug for the diagnostic connector.
Remove the lower left side of the center console on the instrument panel.
We take a piece of wire (about 1 m long) and connect it according to the following diagram. This wire in the diagram is designated as K-line white. That is, we connect terminal “7” (Euro-3) or terminal “M” (Euro-2) in the diagnostic connector with terminal “2” in the BC block with a wire.

The top right shows the Euro-3 type diagnostic connector (newer version), the bottom right shows the Euro-2 connector.
The wire connection to the connectors is shown below.

Connecting the on-board computer wire to the connectors
We connect the BC connectors.

Connection of BC connectors on VAZ 2114
We install the BC in its regular place.

That's all, the installation of the on-board computer on the VAZ 2114 has been completed.

Preliminary preparation

Preparing for installation

There are several activities that you should think about and implement before you begin installing the BC.

Determine the set of functions that you want from your bookmaker. For this purpose, standard instructions are attached to each device. Plus a lot of information can be found on the Internet.
It makes no sense to buy a highly sophisticated system for the VAZ 2114. But budget bookmaker models are not the best solution.
The optimal package includes a monitor, a set of wires and a processor.
Decide where the BC will be installed. The center console is best suited for this. But there must be adequate free space for it.
If the center console doesn't fit, try the dash. Although in this case you will need an external housing.

Remember right away that after installing the on-board computer, you will also have to install the software and make the appropriate settings. Therefore, do not think that by connecting all the wires, the work can be considered completed and the BC will miraculously begin to give you objective and adequate information.

SETUP AND TROUBLESHOOTING

Setting up the on-board computer is not always required; for example, the BC 2114-3857010 is easy to use and requires almost no settings. Each device displays its own parameters, so you need to read the instructions for the BC and follow the recommendations from the manufacturer.

If the VAZ 2114 on-board computer does not work, you need to check:

Correct and reliable connection of wires and plugs;
The integrity of fuse F3, which is responsible for the operation of the BC (there is not always a fuse on the device itself, but in any case you need to look at the instructions);
The settings are correct according to the instructions supplied with the bookmaker.

Sometimes it is necessary to reset all data (fuel consumption, travel time, etc.). As a rule, the instructions contain instructions for this (usually a reset button). But if there is no instruction or it doesn’t say anything about it, then you can reset the indicators like this:

Remove the BC and remove the connector for a while;
Disconnect the battery terminals for a certain period of time.

The readings should reset to zero.

Watch

Type A and B

Time settings

The ignition key must be in the ACC (I) or ON (II) position.

To set the time

Press the H (hour) button to change the hour.

To set the minutes

Press the M (minutes) button to change the minutes.

Enter

1. Hours 2. Minutes
3. Reset

Type B

1. Hours 2. Minutes 3. Reset
4. Time

Press the RESET button to reset the minutes. The clock will be set to display the clock.

For example, if the RESET button was pressed between 9:00 and 9:29, the time will be reset to 9:00. If pressed in the time range from 9:30 to 9:59, the time will be set to 10:00.

9:01 — 9:29 = 9:00 9:30 — 9:59 = 10:00

When the device is turned off, the time is automatically reset to 1:00.

Type C

1. Install 2. Reset
3. Select

Time settings

The ignition key must be in the ACC (I) or ON (II) position.

Press and hold the SET button for about 2 seconds until the clock indicator flashes. Release the button. Then press the SET button again to set the minutes and hours.

After setting the time, press the SELECT button to start the clock.

When the hour indicator on the watch is flashing, press the RESET button to reset the reading. The clock will be set to show the time in hours.

If the clock is reset when the display shows, for example, 9:01 to 9:29, the time is reset to 9:00. If a reset occurs between 9:30 and 9:59, the time will be reset to 10:00.

When the device is turned off, the time is automatically reset to 1:00.

Type D

1. Clock

If the car is equipped with an audio system, the clock is built into the system itself.

ERRORS

On the on-board computer you can read all the errors that occur in the ECM. Deciphering the VAZ 2114 error code follows certain codes. If there are no errors, the message “No errors” lights up on the display. The list of errors is large, so we will list only the most common error codes for the VAZ 2114:

0134 – no oxygen sensor activity;
0116 – coolant temperature sensor error;
0172 – enriched fuel mixture;
0300 - presence of misfires;
0340 – phase sensor is faulty;
0505 – failures in the XX regulator.

Errors on the VAZ 2114 on-board computer are reset according to the instructions for each specific model by pressing a button combination, but a general reset can be done by temporarily disconnecting one of the battery terminals.

What to choose?

The range of on-board computers for the VAZ 2114 is quite large. But don't take the first meeting.

First, make sure that the computer you choose supports the programs provided for the Model 14 electronic control unit.

Range Model GF 415T

We do not recommend buying cheap models. If you decide to install a flatbed, make sure that there is no doubt about its quality and reliability. You will have to pay a decent amount for this, but believe me, it is worth it.

Installing an on-board computer on a VAZ 2114

Just a few years ago, a car's electronic system was considered a luxury innovation, but recently many cars are equipped with this element.

Most motorists would like to have a car filled with all the latest technical innovations. But unfortunately, not all cars of the VAZ family are equipped with an electronic system. Installing an on-board computer on a VAZ 2114 yourself should not cause any difficulties.

The functionality of the electronics is quite extensive; it has a large number of various programs aimed at improving the performance of the car and monitoring its technical condition. This system determines with the highest accuracy many machine operating parameters, for example: speed limit, brake fluid temperature, voltage level inside the machine system and much more. Moreover, the indicators of the on-board computer are several times more accurate than the indicators of standard instruments. The functionality of the electronic on-board system is very diverse.

In addition to determining the accuracy of indicators in the operation of the machine, on-board electronics do an excellent job of diagnosing all vehicle systems and identifying fault codes. There should be no difficulties in deciphering the codes, because... The on-board computer instructions contain all the necessary transcripts.

The advantages of electronics are quite noticeable; it is possible, without visiting a service center, to independently identify all problems that arose during operation and eliminate them in a timely manner. An important point is that the system helps to avoid quite serious consequences of a malfunction thanks to timely diagnosis.

Another advantage of this system is the equipment with sound alarm and light alarm. This type of alarm also informs the car owner about problems that have arisen in the car’s network, or informs about engine overheating.

Installing an on-board computer on a VAZ 2114

Why is it needed?

By installing an on-board computer, you can get a device that informs you about the operation of all systems, and with enviable accuracy. The computer reads parameters, reports potential malfunctions, and allows you to prevent breakdowns before they lead to serious repairs.

New device

It is incredibly difficult to overestimate the benefits of an on-board vehicle, which is why many decide to install it on their VAZ 2114. This way, car owners, without the help of expensive equipment at a service station, will be able to independently monitor the condition of the car and promptly respond to messages from the computer, which carries out regular diagnostics.

ERRORS ON-BOARD COMPUTER VAZ 2114

To check the computer, you need to reset the mileage for the day on the dashboard and turn on the ignition at the same time. Then, by pressing the button on the windshield wiper lever, you will see on the display the computer firmware version with error codes, if any.

Main error codes:

2 - The machine's mains voltage is too high.
3-fuel level sensor.
4-fluid cooling temperature sensor.
5-malfunction of the overboard temperature sensor.
6-motor overheating.
7 - critically low oil pressure.
8-disadvantages in the braking system.
9-battery is low.

The most common on-board system errors are:

Code 4 mainly appears when the engine is not warmed up enough, or when the sensor indicating the amount of fuel is turned on.
Code 6 indicates an overheated engine.
Code 8, when there is a shortage of brake fluid in the system.

Having identified existing errors, you can reset them; just press and hold the car’s daily mileage button for a while.

Important!
Before making a transaction to purchase a car, be sure to check the on-board system. Make sure there are no system errors. Or you will discover interesting facts about the condition of the car. For example: engine heating, oil pressure, etc.

Brief instructions for use

The on-board computer in question is a structurally complex electronic design capable of performing about 500 options. The STATE variation is interfaced with the VAZ 2114 ECU, which ensures normal operation of the device. To use the computer correctly, you should study the purpose and functionality of the BC control buttons located on the dashboard.

It is not necessary to keep in mind the decoding of all the codes; you just need to print them out and take them with you. Important notices:

2
– excessive voltage in the on-board network;

3
– problems with the fuel indicator;

4
– signals a violation of the temperature regime of the power unit;

6
– indicates engine overheating;

7
– critical decrease in pressure in the lubrication system;

8
– violations in the brake unit;

9
– battery discharge.

It happens that the BC issues codes incorrectly due to the failure of a sensor. However, you should not ignore checking the car, since, most often, the activation of errors indicates a malfunction. After fixing the problem, you should reset the processor. This procedure is performed by turning on and holding the daily mileage button.

HOW TO CONNECT AN ON-BOARD COMPUTER TO A VAZ 2114

Before proceeding with installation, you need to decide for which functions the on-board computer of the VAZ 2114 is needed. Before deciding on the choice of an electronic system, you need to pay attention to the characteristics of the machine. Of course, it is not advisable to buy a very complex system for an ordinary car, or one that is too expensive for a budget car. It is enough to purchase a system that includes a monitor, the necessary set of wires and, accordingly, a processor.

Next, determine where to mount the electronic system monitor. The best solution would be to install it in the central part of the console, if space allows. If there is no free space, the monitor can be mounted on a dashboard; therefore, an external housing is required.

The next step is to place the processor itself. Do not forget that all ventilated openings of the processor must be freely accessible, and the case must be mounted in a certain place. The wires must also be routed through a special tube that protects them from external negative influences.

After installing all the elements, connect the wiring. To display the technical condition of the machine, you need to connect the on-board computer to the center of the machine. After completing the installation process, turn on the system and install the necessary programs. The final step will be setting up.

If there are problems with the operation of the electronic system, for example, the on-board computer of the VAZ 2114 does not work. Most likely, the problem lies in incorrectly connected contacts or incorrect settings. To solve this issue, just check all connections and correct them, or check the existing settings according to the instructions.

How to install an on-board computer on a VAZ 2114?

9 - and pin connector

Diagnostic block VAZ 2114

First you need to remove the plug on the panel. After removing it, you need to find a bunch of wires with a 9-pin connector; it is available on all VAZ model cars. Connect the connector to the on-board computer, be sure to draw a K-line, for this:

Connect a 1 m long wire to the second contact of the connector block.
Run the other end of the wire to the diagnostic block under the dashboard, so that the process does not cause inconvenience, you can unfasten the panel on the right.
Connect the wire to the diagnostic block, through the M-socket if there is a EURO 2 block, or to socket 7 if there is a EURO 3 block (there are cases where the EURO 3 block is installed upside down, be sure to pay attention to this!).
Connect the on-board computer, install it in the designated place and test it.

The presented connection diagram for the on-board computer on the VAZ 2114 shows in detail the procedure.

Connection diagram for on-board computer on VAZ 2114

Errors when connecting/operating the on-board computer

Error: “No connection with the controller” or “break in the K-line.”

It indicates that the K-line is not connected or a contact break has occurred. Check the wire according to the diagram described above. Most likely, the contact has come off the diagnostic block.

Error: Incorrect temperature sensor readings.

If, according to the instrument readings, your temperature outside is -40, then this indicates that a wire has broken or there is no such analyzer at all. If the sensor shows -25, but it's only -10 outside, then you need to replace it.

Even some 15-20 years ago, a computer in a car was considered an element of luxury and was installed on cars of the most top manufacturers and trim levels, which, of course, could not be said about representatives of the domestic market.

HOW TO REMOVE THE ON-BOARD COMPUTER ON A VAZ 2114

Unfortunately, many drivers are not satisfied with the performance of the electronic system of the car installed during the assembly of the VAZ. You can remove this gadget yourself without any problems.

The first step is to study the machine's instructions; it provides for the process of dismantling the on-board system.

Be sure to check with the car dealership where you purchased the car about the warranty period. Most dealerships can cancel the warranty if you tamper with the car yourself.

Let's start removing the on-board computer:

First you need to take out the radio, but first disconnect the negative terminal from the battery.
Remove the outer panel of the radio.
Then remove the entire body of the radio, making sure to unfasten the wires connected to it.
Place your hand through the opened hole and carefully open the fastenings of the computer unit.
Remove the on-board computer, having first unfastened all the wires connected to it. If you do not plan to install a new electronic system, it is necessary to connect the wiring.
Also gently remove all devices connected to the computer.
Connect the radio tape recorder back and install it in its place.

Hazard warning light - practical or not

Emergency notifications play a fairly important role in modern car computers. In particular, the driver can be promptly notified of the following:

Motor overheating when the temperature exceeds 115 degrees.
Changes in the vehicle's electrical network. The signal appears when the voltage drops or exceeds permissible limits.
Exceeding the speed limit at a preset threshold.

Also, on-board computers inform the driver about the need for maintenance. During the process of setting up the computer, indicators are indicated at which it is necessary to change the oil, air filter, and so on.

Purpose of the On-Board Computer

Those who have installed an on-board computer in their car, which is the name of this innovation that provides additional control, believe that its functions can satisfy the needs of even an avid car enthusiast. At first glance, this electronic device demonstrates characteristics that were previously presented on the control panel of various VAZ models, including the 2114. Every car already has a clock, as well as a speedometer (speed meter), tachometer (shows engine speed), odometer (responsible for mileage).

They, however, flaunt quite harmoniously before the driver’s eyes, properly decorated. Yes, and other parameters are present here: how much fuel is in the tank, there may even be thermometer indicators that display indicators of both external and internal air conditions. Everything is done to the highest standards of automotive design. But control systems (on-board computer) are not just different indicators brought together on one screen.

What settings are important during operation?

The standard on-board computer of the VAZ 2114 has quite decent functionality, but the lack of error notification in the sensor system makes it not very suitable for use. Since you need to know where and what has stopped working, it is better to install a more informative device. How to use my new purchase?

In all cases, a small instruction manual is included, which indicates the basic conditions for installing the computer, as well as its initial settings. The device interface is quite simple, and the VAZ 2114 on-board computer is controlled and configured using buttons. There's nothing complicated.

Now it’s worth talking about the functions that need to be enabled to conveniently monitor the operating conditions of the car. These are the following options:

read error codes and decipher them.
air consumption for the fuel mixture;
information about the operation of the cooling system - usually shows the temperature of the coolant;
the amount of fuel in the tank, its consumption, how the nozzle works;
voltage value in the electronic network;
automatic speed;
data on engine operation: the option shows the speed, gasoline consumption, temperature in the engine block;

All other functions of the on-board computer are considered secondary and are turned on at will. The VAZ 2114 on-board computer, whose instructions contain a description of all settings, can work in conjunction with sound and light alarms. The selected signal will indicate a malfunction so that the driver does not miss a breakdown or error.

Differences between bookmaker and control panel

Experienced drivers know that the speedometer simply converts engine revolutions into speed, and as soon as you change the wheels to a larger diameter, the speed will increase, although the indicator will work the “old-fashioned way.” In order not to get into trouble at the next traffic police post, you cannot do without a BC. But much remains not taken into account by simple fixators, and on a long journey such factors as actual and average fuel consumption, information about the mileage already covered, the amount of fuel used, etc. will be quite appropriate. These parameters of the VAZ 2114 can be calculated, but is there any time for the driver, who is primarily obliged to watch the road and not do calculations.

The “smart” car 2114 will itself monitor that the car does not overheat in the heat, and the most advanced on-board computers will even alert you to the danger of ice formation in cold weather. The computer will also report the voltage inside the engine system. With such an assistant, the trip will be much safer, over short or long distances. The main thing is not to ignore your computer's warning signals.

It may seem that an indicator appeared on board and began to count indicators. But in fact, the data on the operation of the car’s equipment was already known, it was simply not displayed in front of the driver. However, why was it necessary to turn the interior of a passenger car into a pilot’s cockpit? Connecting the “on-board” (on-board computer) to all existing sensors inside the car, processing the received data and presenting them in a form convenient for the driver - this is the main task that is assigned to the BC.

The task of the On-Board Computer is not only to collect information from the car’s sensors, but also to process it, correct it, analyze it and present it in a form convenient for the driver.

What parameters does the BC screen display?

By connecting the onboard vehicle, you will be able to access a large amount of information and data about the operation of your car.

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Parameter displays

Most computers suitable for the VAZ 2114 display the following data:

Vehicle speed;
The volume of fuel remaining in the tank;
Travel time;
Engine speed;
Fuel consumption indicators;
Engine heating degree;
Temperature inside the cabin;
The distance that the car can travel on the remaining fuel;
Distance traveled by the car;
Voltage in the on-board electrical network;
The amount of heating of the coolant;
Throttle position;
Total air flow;
Error codes and their designation in understandable language;
Average car fuel consumption;
The amount of fuel consumed for the current trip;
Distance traveled during the trip in kilometers;
Average speed;
Other useful information.

Connecting the On-Board Computer

The VAZ 2114 car model is already equipped with a prepared place for installing an on-board computer. As a rule, a “Multitronics” or “State” computer is very suitable for her. Many car enthusiasts who have experienced all their delights recommend choosing these brands. Moreover, there are versions of this device with a color screen - for amateurs. But this is nothing more than an additional convenience and, apart from “beauty,” is no different from its predecessors.

To connect the on-board computer, you will need to perform some mandatory operations:

First of all, you should connect the device itself to power. For this, direct current +12V, which exists in the VAZ, is used.
In order for the BC to start automatically simultaneously with the engine turning on, the power used to ignite the engine must be connected to it. If you connect the side lights to an electrical source, the computer screen will dim slightly, which is very convenient when it gets dark.
Be sure to connect the ground.
Whether or not to send a signal from the fuel level sensor (FLS) depends on the model of the BC used. Some of them themselves theoretically calculate how much has already been used, depending on the indicators of instantaneous fuel consumption and its initial presence in the tank.
It also remains to connect the “K-line” controller diagnostic line.

How to choose a quality bookmaker

The main rule when choosing a computer for a car is that the device must support collaboration with the computer. And secondly, you need to be guided by personal preferences. You should clearly understand what functionality the device should have.

The Multitronics on-board computer fits best into the VAZ 2114 car. Among the devices from this company, you can choose the best option for your car.

Today there are a huge number of automotive gadgets with different purposes. An on-board computer can be universal - monitor vehicle systems and access the Internet. It can also be highly specialized. Particularly popular today are route BCs, which allow you to build a route using an interactive LCD display, download various maps of the area from the Internet and perform a number of other useful actions.

The price range is quite wide - you can buy a device for 1000 rubles, or for 5000 rubles. Of course, more expensive models are endowed with enormous functionality. They are capable of starting the engine to warm up at a certain time, signaling low tire pressure, and turning on a GPS navigation system.

If these functions are not paramount for you, then you should choose an on-board computer from the budget segment and not overpay for functions that will never be useful.